A multi-layer sealing tunnel furnace

Abstract

The present application relates to the technical fields of tunnel furnace, and discloses a multi-layer sealed tunnel furnace, which comprises a multi-layer tunnel furnace body, the multi-layer tunnel furnace body comprises a first tunnel furnace, a plurality of second tunnel furnaces and a third tunnel furnace, and the plurality of second tunnel furnaces are sequentially sleeved on the first tunnel furnace. The first tunnel furnace, the second tunnel furnace and the third tunnel furnace are sequentially sleeved, so that the food baking can be realized through multiple ports, and the food baking efficiency can be effectively improved. The ventilation components arranged between the tunnel furnaces can realize the connection or sealing between different tunnel furnaces. The first ventilation hole and the second ventilation hole are connected through the sliding of the first ventilation plate, so that the heat in the first tunnel furnace can preheat other tunnel furnaces, and the energy saving is maximized.

Description

Technical Field

[0001] This invention relates to the technical field of tunnel furnaces, and in particular to a multi-layer sealed tunnel furnace. Background Technology

[0002] A tunnel oven is a tunnel-shaped mechanical device that bakes food through heat conduction, convection, and radiation. It has a continuously operating conveyor system inside to ensure that the food is transported in an orderly manner during the baking process.

[0003] Most existing tunnel ovens are single-channel baking ovens, meaning that food enters the oven through only one port for baking. This design cannot effectively improve the baking efficiency of food. Furthermore, it is impossible to preheat the food before baking in the tunnel oven, and the heat overflows after baking, resulting in wasted resources. To solve these problems, this invention proposes a multi-layer sealed tunnel oven. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the problem that the baking efficiency of existing single-channel baking tunnel ovens is low and that heat is easily wasted. In order to overcome the above-mentioned problems, a multi-layer sealed tunnel oven is provided, which solves the above-mentioned problems.

[0005] The technical problem solved by this invention is achieved through the following technical solution:

[0006] A multi-layer sealed tunnel furnace includes a multi-layer tunnel furnace body, which comprises a first tunnel furnace, a plurality of second tunnel furnaces, and a third tunnel furnace. The plurality of second tunnel furnaces are sequentially inserted into the first tunnel furnace, and the third tunnel furnace is inserted into the uppermost second tunnel furnace. The upper and lower parts of the second tunnel furnaces are interconnected. Ventilation components are provided between the first and second tunnel furnaces and between the second and third tunnel furnaces. Each ventilation component includes a first ventilation plate and a second ventilation plate. The first ventilation plate is horizontally slidably disposed within the multi-layer tunnel furnace body. The first ventilation plate has a plurality of first ventilation holes, and the second ventilation plate has second ventilation holes corresponding one-to-one with the first ventilation holes. A driving component is provided on one side of the first ventilation plate for driving the first ventilation plate to slide horizontally. The sliding of the first ventilation plate creates two states between the first and second ventilation holes: In the first state, the first ventilation plate does not slide, and the first and second ventilation holes do not correspond; the interior of the multi-layer tunnel furnace body is not connected and is individually sealed. In the second state, the first ventilation plate slides, and the first and second ventilation holes correspond; the interior of the multi-layer tunnel furnace body is then connected.

[0007] Preferably, a plurality of the first ventilation plates are respectively disposed on the upper part of the first tunnel furnace, the second tunnel furnace and the third tunnel furnace, and a plurality of the second ventilation plates are respectively disposed on the bottom of the second tunnel furnace and the third tunnel furnace, with adjacent first ventilation plates and second ventilation plates abutting against each other.

[0008] Preferably, a limiting plate is provided on the upper side of each of the first ventilation plates, the side wall of the limiting plate is attached to the side wall of the multi-layer tunnel furnace body, and the limiting plate is hollow to accommodate the second ventilation plate.

[0009] Preferably, a plurality of the second ventilation plates are distributed at the bottom of the second tunnel furnace and the third tunnel furnace, and the outer side wall of the second ventilation plate is steppedly engaged with the limiting plate.

[0010] Preferably, the top of the third tunnel furnace is provided with a cover plate for sealing the third tunnel furnace.

[0011] Preferably, the multi-layer tunnel oven body has a baking chamber for baking food, and the baking chamber is equipped with conveyor belts for conveying food in the first tunnel oven, the second tunnel oven and the third tunnel oven respectively.

[0012] Preferably, the driving component includes a telescopic cylinder disposed on the outer wall of the multi-layer tunnel oven body, the telescopic rod of the telescopic cylinder extending into the baking chamber, and one end of the telescopic rod being disposed on the first ventilation plate.

[0013] Preferably, the multi-layer tunnel oven body has several feeding sections on both sides for feeding food. Each feeding section includes a protective shell on the side wall of the tunnel oven body. A through groove for food to enter and exit is formed inside the protective shell. A seal is provided in the through groove to prevent heat from escaping from the baking chamber.

[0014] Preferably, the sealing element includes a rotating plate rotatably disposed within the protective housing, with the upper part of the rotating plate rotatably disposed within the protective housing.

[0015] Preferably, the multi-layer tunnel oven body is provided with several heating elements for heating the baking chamber.

[0016] The advantages and positive effects of this invention are as follows: by sequentially inserting the first tunnel oven, the second tunnel oven, and the third tunnel oven, the purpose of multi-port food baking can be achieved, thereby effectively improving the efficiency of food baking. The ventilation components between the tunnel ovens can be arranged to connect or close the different tunnel ovens. By sliding the first ventilation plate, the first ventilation hole and the second ventilation hole can be connected, thereby enabling the heat in the tunnel oven that is heated first to preheat the other tunnel ovens, thus maximizing energy saving. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 yes Figure 1 Schematic diagram of the structure of AA;

[0020] Figure 3 yes Figure 1 Cross-sectional view;

[0021] Figure 4 yes Figure 1 An explosion diagram;

[0022] Figure 5 yes Figure 4 Schematic diagram of the structure of BB;

[0023] The markings in the attached diagram are described below:

[0024] 1. Multi-layer tunnel oven body; 11. First tunnel oven; 111. Baking chamber; 12. Second tunnel oven; 121. Second ventilation plate; 1211. Second ventilation hole; 13. Third tunnel oven; 131. Cover plate; 14. Conveyor belt; 15. Limiting plate;

[0025] 2. Protective outer shell; 21. Conveying section; 221. Rotating plate; 22. Through groove; 23. Telescopic cylinder;

[0026] 3. Heating element;

[0027] 4. Ventilation components; 41. First ventilation panel; 411. Second ventilation hole. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0029] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings:

[0030] Reference Figure 1 and Figure 2 as well as Figure 3As shown, most existing tunnel ovens operate on a single-channel baking model. In this model, baking efficiency is reduced, and the oven needs to be preheated before baking to ensure optimal results. Furthermore, significant heat loss after baking is a waste of resources. To address these issues, this embodiment provides a multi-layer sealed tunnel oven, comprising a multi-layer tunnel oven body 1. The multi-layer tunnel oven body 1 includes a first tunnel oven 11, several second tunnel ovens 12, and a third tunnel oven 13. The several second tunnel ovens 12 are sequentially inserted into the first tunnel oven 1. 1. The third tunnel oven 13 is inserted into the uppermost second tunnel oven 12. The upper and lower parts of the second tunnel oven 12 are in a through-type configuration. Ventilation components 4 are provided between the first tunnel oven 11 and the second tunnel oven 12, and between the second tunnel oven 12 and the third tunnel oven 13. The first tunnel oven 11, several second tunnel ovens 12, and the third tunnel oven 13 are inserted into the tunnel oven in sequence to form a multi-layer tunnel oven body 1. The multi-layer tunnel oven body 1 can achieve the purpose of baking food through multiple channels, thereby effectively improving the efficiency of food baking. Furthermore, the ventilation components 4 can effectively switch between the connected and closed states of each tunnel oven.

[0031] It should be noted that the specific method of sequentially inserting the first tunnel furnace 11, several second tunnel furnaces 12, and the third tunnel furnace 13 into the above is as follows: the first tunnel furnace 11 is placed at the bottom, the second tunnel furnace 12 is inserted and inserted on the upper side of the first tunnel furnace 11, and several more second tunnel furnaces 12 can be inserted and inserted on the second tunnel furnace 12. The specific number can be set according to actual needs. The third tunnel furnace 13 is set on the upper side of the second tunnel furnace 12 to ensure that the entire multi-layer tunnel furnace body 1 is sealed, and that the entire multi-layer tunnel furnace body 1 is a relatively sealed space.

[0032] It is worth mentioning that the ventilation component 4 can be used to connect or seal the various tunnel ovens. Specifically, when food is being baked in the first tunnel oven 11, while other tunnel ovens do not yet need to be baked, the ventilation component 4 ensures that the first tunnel oven 11 is not connected to the other tunnel ovens. At this time, the heat in the first tunnel oven 11 cannot dissipate, thus ensuring the orderly drying of the food in the first tunnel oven 11. When the baking efficiency needs to be increased, the second tunnel oven 12 needs to be preheated. At this time, the operation of the ventilation component 4 can connect the first tunnel oven 11 with the upper second tunnel oven 12. The heat in the first tunnel oven 11 will then enter the second tunnel oven 12 through the ventilation component 4, thus achieving the purpose of preheating the second tunnel oven 12. This also saves energy and preheating time as much as possible.

[0033] Specifically, the ventilation component 4 has the following structure: The ventilation component 4 includes a first ventilation plate 41 and a second ventilation plate 121. The first ventilation plate 41 is horizontally slidably disposed within the multi-layer tunnel furnace body 1. The first ventilation plate 41 has a plurality of first ventilation holes 411. The second ventilation plate 121 has second ventilation holes 1211 corresponding one-to-one with the first ventilation holes 411. A driving component for driving the first ventilation plate 41 to slide horizontally is provided on one side of the first ventilation plate 41. The sliding of the first ventilation plate 41 creates two states between the first ventilation holes 411 and the second ventilation holes 1211: In the first state, the first ventilation plate 41 does not slide, and the first ventilation holes 411 and the second ventilation holes 1211 do not correspond; the interior of the multi-layer tunnel furnace body 1 is not connected and is individually sealed. In the second state, the first ventilation plate 41 slides, and the first ventilation holes 411 and the second ventilation holes 1211 correspond. The interiors of the multi-layer tunnel oven 1 are interconnected. When preheating is required in the second tunnel oven 12, the drive unit drives the first ventilation plate 41 to slide along the bottom of the second ventilation plate 121, causing the first ventilation hole 411 to continuously approach the second ventilation hole 1211 until the first ventilation hole 411 and the second ventilation hole 1211 are connected. At this time, the heat in the first tunnel oven 11 can enter the second tunnel oven 12 from bottom to top to preheat the second tunnel oven 12, which is the second state mentioned above. In the first state, the first tunnel oven 11 is sealed, which can ensure the effectiveness of food baking in the first tunnel oven 11. The fact that the interiors of the multi-layer tunnel oven 1 are not interconnected and are individually sealed means that the first tunnel oven 11 and the second tunnel oven 12 are not connected, the second tunnel oven 12 is not connected to each other, and the second tunnel oven 12 is not connected to the third tunnel oven 13.

[0034] In addition, the aforementioned driving component is specifically a telescopic cylinder 23, and the telescopic rod of the telescopic cylinder 23 extends into the baking chamber 111, with one end of the telescopic rod located on the first ventilation plate 41; the operation of the telescopic cylinder 23 can achieve the purpose of making the first ventilation plate 41 slide.

[0035] Reference Figure 4 As shown, the insertion between the first tunnel furnace 11 and several second tunnel furnaces 12 and the third tunnel furnace 13 is specifically achieved through a certain method; each of the first ventilation plates 41 has a limiting plate 15 on its upper side, the sidewall of the limiting plate 15 is attached to the sidewall of the multi-layer tunnel furnace body 1, and the limiting plate 15 is hollow to accommodate the second ventilation plate 121; the limiting plate 15 is specifically positioned at the top of the first tunnel furnace 11 and the second tunnel furnace 12, and the limiting plate 15 is arranged to form a rectangular limiting plate 15 with a through center, encircling the sidewall of the tunnel furnace. Furthermore, a second ventilation plate 121 is provided at the bottom of the second tunnel furnace 12 and the third tunnel furnace 13. The second ventilation plate 121 is positioned exactly inside the hollow part of the limiting plate 15, and is located inside the bottom of the tunnel furnace. The two can be connected by welding. In other words, the position of the second ventilation plate 121 will not change after the tunnel furnaces are inserted one after another. The above arrangement is to ensure the sealing of each tunnel furnace and prevent heat loss from its interior. The two adjacent first ventilation plates 41 and second ventilation plates 121 are in a state of mutual contact.

[0036] It should be noted that, in order to ensure better sealing between two adjacent tunnel furnaces after the sleeve is inserted, sealing gaskets can also be installed at the insertion point. Of course, these sealing gaskets have the effect of resisting high temperature.

[0037] It should also be noted that the third tunnel furnace 13 at the top is inserted into the second tunnel furnace 12 at the top, and the second tunnel furnace 12 is arranged in a through state on both the top and bottom sides. Therefore, in order to ensure the integrity of the entire multi-layer tunnel furnace body 1, the third tunnel furnace 13 needs to be set at the top, and the top side of the third tunnel furnace 13 is provided with a cover plate 131 for sealing the entire multi-layer tunnel furnace body 1.

[0038] Reference Figures 1 to 5 As shown, each tunnel oven that makes up the multi-layer tunnel oven body 1 is equipped with a conveyor belt 14 for food transport and baking. Each tunnel oven forms a separate baking chamber 111, and these baking chambers 111 are connected to form a whole baking chamber 111 of the multi-layer tunnel oven body 1.

[0039] Reference Figure 1 and Figure 4As shown, in order to ensure that the heat inside the baking chamber 111 does not escape during the process of food entering the baking chamber 111, in this embodiment, several feeding parts 21 for feeding food are provided on both sides of the multi-layer tunnel oven body 1; the feeding parts 21 can achieve the purpose of preventing excessive heat loss from both sides of the multi-layer tunnel oven body 1.

[0040] Specifically, the structure of the aforementioned conveying unit 21 is as follows: the conveying unit 21 includes a protective outer shell 2 disposed on the side wall of the tunnel oven body, and a through groove 22 for food to enter and exit is formed inside the protective outer shell 2. The through groove 22 is provided with a sealing element for preventing heat leakage from the baking chamber 111. The through groove 22 ensures that external conveying equipment can extend into the through groove 22 and that food can enter the through groove 22 in an orderly manner until it passes through the sealing element. After the food passes through the sealing element, the sealing element will close the entrance of the through groove 22 again, thereby achieving the purpose of sealing the baking chamber 111 in real time.

[0041] It should also be noted that the aforementioned sealing element is a rotating plate 221 rotatably disposed within the protective housing 2. The upper part of the rotating plate 221 is rotatably disposed within the protective housing 2. In other words, the upper part of the rotating plate 221 is rotatably disposed within the protective housing 2, and the lower half of the rotating plate 221 rotates clockwise or counterclockwise around the upper rotation point. When food approaches the rotating plate 221, it will push the rotating plate 221 to rotate, thereby achieving the purpose of rotating the rotating plate 221 until the food passes through the rotating plate 221. At this time, the food enters the baking chamber 111, thereby effectively preventing the heat in the baking chamber 111 from escaping.

[0042] In addition, the heating inside the multi-layer tunnel furnace body 1 mentioned above is achieved by the operation of several heating elements 3 installed on the side wall of the multi-layer tunnel furnace body 1.

[0043] It should be emphasized that the embodiments described in this invention are illustrative rather than limiting. Therefore, this invention is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this invention also fall within the scope of protection of this invention.

Claims

1. A multi-layer sealing tunnel oven comprising a multi-layer tunnel oven body (1), characterized in that: The multilayer tunnel furnace body (1) comprises a first tunnel furnace (11), a plurality of second tunnel furnaces (12) and a third tunnel furnace (13), the plurality of second tunnel furnaces (12) are sequentially sleeved on the first tunnel furnace (11), and the third tunnel furnace (13) is sleeved on the uppermost second tunnel furnace (12); the upper and lower parts of the second tunnel furnace (12) are in a through manner; ventilation assemblies (4) are arranged between the first tunnel furnace (11) and the second tunnel furnace (12) and between the second tunnel furnace (12) and the third tunnel furnace (13); the ventilation assembly (4) comprises a first ventilation plate (41) and a second ventilation plate (121); the first ventilation plate (41) is horizontally slidably arranged in the multilayer tunnel furnace body (1); a plurality of first ventilation holes (411) are arranged on the first ventilation plate (41); a plurality of second ventilation holes (1211) corresponding to the first ventilation holes (411) are arranged on the second ventilation plate (121); a driving member for driving the first ventilation plate (41) to slide horizontally is arranged on one side of the first ventilation plate (41); the first ventilation plate (41) is slid to form two states between the first ventilation hole (411) and the second ventilation hole (1211); in the first state, the first ventilation plate (41) is not slid, at this time, the first ventilation hole (411) and the second ventilation hole (1211) are not corresponding, the inside of the multilayer tunnel furnace body (1) is not communicated and is in a separate sealing state; in the second state, the first ventilation plate (41) is slid, the first ventilation hole (411) and the second ventilation hole (1211) are corresponding, at this time, the inside of the multilayer tunnel furnace body (1) is communicated. A plurality of first ventilation plates (41) are arranged on the upper parts of the first tunnel furnace (11), the second tunnel furnace (12) and the third tunnel furnace (13); a plurality of second ventilation plates (121) are arranged on the bottoms of the second tunnel furnace (12) and the third tunnel furnace (13); the first ventilation plate (41) and the second ventilation plate (121) are abutted.

2. A multi-tiered sealed tunnel furnace as claimed in claim 1, wherein: Limiting plates (15) are arranged on the upper sides of the plurality of first ventilation plates (41); the side walls of the limiting plates (15) are attached to the side walls of the multilayer tunnel furnace body (1); and the limiting plates (15) are hollow and arranged for accommodating the second ventilation plate (121).

3. A multi-tiered sealed tunnel furnace as claimed in claim 2, wherein: The plurality of second ventilation plates (121) are arranged on the bottoms of the second tunnel furnace (12) and the third tunnel furnace (13); and the outer side walls of the second ventilation plates (121) are arranged in a stepped manner in the limiting plates (15).

4. A multi-tiered sealed tunnel furnace as claimed in claim 1, wherein: A cover plate (131) is arranged on the top of the third tunnel furnace (13) for closing the third tunnel furnace (13).

5. A multi-tiered sealed tunnel furnace as claimed in claim 1, wherein: An oven chamber (111) for baking food is arranged in the multilayer tunnel furnace body (1); a conveying belt (14) for conveying food is arranged in the oven chamber (111) in the first tunnel furnace (11), the second tunnel furnace (12) and the third tunnel furnace (13).

6. A multi-tiered sealed tunnel furnace as claimed in claim 5, wherein: The driving member comprises a telescopic air cylinder (23) arranged on the outer wall of the multilayer tunnel furnace body (1), the telescopic rod of the telescopic air cylinder (23) extends into the baking chamber (111), and one end of the telescopic rod is arranged on the first ventilation plate (41).

7. A multi-tiered sealed tunnel furnace as claimed in claim 6, wherein: The multilayer tunnel furnace body (1) is provided with a plurality of feeding portions (21) for feeding food on both sides, the feeding portion (21) comprises a protective shell (2) arranged on the side wall of the tunnel furnace body, a through groove (22) for feeding food is formed in the protective shell (2), and a sealing element for preventing heat overflow in the baking chamber (111) is arranged in the through groove (22).

8. A multi-tiered sealed tunnel furnace as claimed in claim 7, wherein: The sealing element comprises a rotating plate (221) rotatably arranged in the protective shell (2), and the upper part of the rotating plate (221) is rotatably arranged in the protective shell (2).

9. A multi-tiered sealed tunnel furnace as defined in claim 1, wherein: The multilayer tunnel furnace body (1) is provided with a plurality of heating elements (3) for heating the baking chamber (111).

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